Last-lathe.



C. P. MORTON.

LAST LATHE.

APPLICATION FILED NOV. 26. 19:5.

Patented Sept. 26, 1916.

1 UNITED STATES CHARLES 1 MORTON, or cmcrmmrr, cure. I c- LAST-LATHE. l

' 1,199,407. A Specification of Letters Patent. Patented Sept, 26, {916.

Application filed November 21;, 1915. Serial No. 63,383.

To all whom it may concern: proved construction I eliminhte the drum Lathes, of which the nated.

ilton, State of Ohio,

driving the cutter head of cally mounted on Be 1t known that I, CHARLES P. MoR'ro a citizen of the United States of America, and resident of Cincinnati, county of Hamhave invented certain new and useful Improvements in Lastfollowing is aspecification.

This invention relates particularly to the means for mounting and the blade.

ob ect of my invention the large drum ordinarily employed in last lathes, for

Another object of my invention is to provide a means for driving the cutter headto take the place of the usual drum, and which may be mounted in the usual bearings of the shaft of the cutter hea A further object of my produce a the cutter head lathe. p

A further object is to produce a means for mounting and driving a cutter head in such a manner that the vibration created by the drum ordinarily employed for cutter head, is eliminated.

hese andother. objects are attained in the cutter head mounting and driving means debeing turned.

ways 33 formed on the supportin frame members bed. In the usual last lathe construction the cutter head is driven from an elongated drum which rotates beneath the bed of the lathe and from which-passes a'belt 'Which travels across the drum as the carriage is reciprocated on its ways n my imto last miles and b mg extension 16 gthereto by ing belt H of the lathe th and 1n place of the drum I driven pulley and a bracket is supported on t e carriage. This bracket as bosses 6 and 7 in which sh rt lengths of shaft 8 and 9 are mounted, which'havebearprovidea m tor 5 therefor which ormed' on the reciprocating carriage 1. The oss 7 is located at a distance from the body (1 of an arm 12 exthe bracket, so that the bracket wi occupy an angle to the line of the shaft for which the bearings 10. and 11 are rovided, as shown in the drawing. At the top he bracket 5 and in alinement with is presented to the work angle thereto drawing.

The bracket 5 is provided with provided with a adapted to receive the stem 18 of being turned, at an m the position shown in the a dependclamp 17 clamp for securing the plate 19 in its adjusted positions either raised or lowered or When turned to various angles. Upon the underside of the plate 12 the d rlving motor 20 is mounted, th

e motor being secured any suitable means such as nuts and bolts 2 his motor is provided with a driving pulley over which passes a driv- 26 Which-in turn drives the pulley By this 20, the operation- I operation of the lathe, and y means of the b0 motor pulley 25 may be. adjusted to e tension or position the belt 26.

In order to steady the b Its 23' and collar 21 the adjust PATENT or rrcn.

one

a plate 19 lts swinging after it has beenplaced in the A bearings 10 and 11 of the carnage 1, I have provided clamping lugs 28 and 29 extending from the side'of the bracket and engaging pins 30 and 31 bolted to the carriage 1. By

- head of small diameter,

.proved excessive wear on the tightening the bolts 32 and 33 in the lugs 28 and 29 the bracket is mounted rigidly on the carriage.

By means of my am enabled to obtain. a very high speed 0 the cutter head because of its driving mechanism being completelyisolated from the other driving mechanism of the lathe. This cannot be obtained in the present last lathe construction.

Another advantage construction is improved construction I attained in my imthe elimination of belts employed for driving the cutter head, due to strains occasioned by the passage thereof over idlers which reversely bend it.

A further advantagemobtained by my improved construction is the elimination of vibrations produced by the usual cutter head' drum, especially the elimination of the vibration produced by the drum inthe swinging frame which carries the master last and the block from which the stock last is being made. In addition to this the construction embodying my invention may be mounted in the usual bearing riage I and thus obviate the necessity of changing Furthermore, the speed at which the cutter shaft may be run enables me to use a cutter which has the advantage of being able to any desired depth which may be required on the hollow side thereof.

Having thus described my invention, what I claim is:

1. Ameans for mounting and driving cutter heads of last lathes of the character described, comprising a carriage the lathe bed and having a depending bracket extending therefrom, bearings formed on the carriage above the bracket, a cutter head shaft supported by the bearings, a motor mounted in the lower end of the bracket, and means operatively connecting the motor and the shaft.

.2. In a mounting and driving means for cutter heads of last lathes of the character described, the combination of a carriage reciprocally mounted on the lathe bed, a depending bracket cariied by the carriage, a

motor adjustably mounted at the lower end of the bracket, a cutter head rotatively.

I mounted on the bracket, and meansoperatively connecting head.

3. In co the motor and the cutter bination in a mounting and;

formed on the carriage,

sof the carthe construction of the lathe.

turn the last to mounted on 'ingsa the bracket, a motor mounted'in the clamp,

driving means for cutter heads of last lathes of the character described, a carriage mounted on the lathe bed, a depending bracket mounted on the carriage, a motor adjustably f mounted at the lower end of the bracket, bearings at the upper end of the bracket motor and the cutter head.

4. A means for mounting and driving last lathe cutter heads comprising a 'carriage mounted on the lathe bed, bearings formed bn the carriage, a bracket hung in the bearings, a cutter head shaft journaled in the .upper end of the bracket, a motor mounted in the lower end of the bracket, a pulley mounted on the driving shaft of the motor, and a belt operatively connecting the pulley and the cutter head shaft.

5. In a mounting and driving means last lathe cutter heads a combination of a carriage mounted on the lathe bed, bearings a bracket hung in the bearings and'having a clamp at it lower end, a cutter upper end of the bracket, a motor mounted in the clamp at the lower end of the bracket, a pulley mounted onthe driving shaft of the motor, and a belt operatively connecting the pulley and the cutter head shaft, said clamp being adapted to aiford upward, downward orztransverse adjustment of the motor to adjust the tension or position of the belt.

head shaft journaled in the.

for

6. In combination in a mounting and are ing means for cutter heads of last lathes of the character described, a carriage mounted on the lathe bed and having a depending bracket r extending therefrom, formed on the carriage above the bracket, a cutter head shaft supported from the beara clamp located at the lower end of and means operatively connecting the motor and the cutter head shaft, the clamp being adapted to render the motor adjustable upwardly, downwardly or transversely to adjust the connecting means. I

In testimony whereof, I have hereunto subscribed my name vember, 1915.

7 CHARLES P MORTON. Witnesses: i

WALTER F. MURRAY,

W. Tnoim'ron Boonn'r.

this'20th day of No-.

bearings 

